Natural selection is the right answer hope this helps.
The air outside your body because when you tried to hold your breath the pressure builds and forces your body to breath by letting out the air but depending the altitude you are the pressure can change hope this helps
Answer: 238.0952 cm3
Explanation:
Convert 2.5 kg to grams (=2500), Then divide by 10.5 g to find out the cubic centimeter measurement
